After purchasing the OmniStar correction service in March 2011, Trimble introduces a high-accuracy GPS service option. Trimble calls the new service CenterPoint RTX. The system promises to deliver repeatable accuracy of 1.5 in., compared to sub-inch repeatable accuracy for RTK. CenterPoint RTX, which is enabled to use both GPS and GLONASS satellites, will be available across a 1.8 billion-acre swath covering the mid-section of North America beginning in July 2011.

Unlike Trimble’s RTK offering, which delivers corrections via land-based radios or cellular networks, the RTX system delivers corrections via satellite. This allows Trimble FmX and CFX-750 monitors to access RTX corrections without the need for a radio or cellular modem. Instead of establishing corrections using land-based stations, as with RTK offerings, the RTX system uses positioning and compression algorithms to compute and relay satellite orbit, satellite clock, and other system adjustments from the satellite to the receiver.

Trimble has not yet released CenterPoint RTX subscription prices. For more information, visit www.trimble.com/agcorrectionservices.